RE: half-height video, enlarging

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> 1024x768, 1280x1024, 1600x1400 are desktop resolutions I've used.
> Scaling up to
> any of these resolutions gives me a fairly pixelated picture with
> blurred lines
> -- pretty much what you'd get if you took a jpeg and enlarged it
> with ee, or
> some similar tool. This seems predictable to me -- what else
> would happen if
> you blow up a low resolution picture? The part I don't get is why
> it's such a
> sought after feature. Is there some way to enlarge a low resolution source
> without making it blurred and pixelated?
>
> When doing fullscreen from a bt878 card, I set fullscreen to
> 640x480 in ~/.xawtv.
>

Bilinear interpolation gives a little less blocky appearance. Many
video equipment implement their "digital zoom" function with something
similar.


    Jonk





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